Gage-cock



E, J. SHEARER AND M. M. OWENS.

GAGECOCK.

APPLICAI'IUN FILED JULY 18,1919.

Patented July 20, 1920.

N a: N} \m I m "I v 1 m 1,

w if

b w 0 a 1 aww/wtoz yfbqz Zfrfdfiearer 1914344040 MM 022/6 7 WWW UNITEDSTATES PATENT OFFICE.

EDWARD J. SHEARER, or oor'jroiv, CALIFORNIA, AND MARSHALL M. OWENS, 0ELORDSBURG, NEW MEXICO.

GAGE-COCK.

Specification of Letters Patent. Patented J ly 20. 1920 Applicationfiled July 18, 1919. Serial No. 311,710.

To all whom it may concern:

Be it known that we, EDWARD J. SHEARER and MARSHALL M. OWENs, citizensof the United States, residing (SHEARER) at Golton, in the county of SanBernardino and State of California, and (OwENs) at Lordsburg, in thecounty of Grant and State of.

New Mexico, have invented certain new and useful Improvements inGage-Cocks; and We do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to gage cocks.

One object of this invention is to generally improve upon devices ofthis character by providing an improved structure that comprises few,simple, strong and durable parts, and is very practical and effective.

Other objects and advantages may be-v come apparent to persons who readthe following details of description in connection with the accompanyingdrawings, in which Figure 1 is a longitudinal vertical sectional viewthrough our improved gage cock and a portion of a boiler with which itis connected.

Fig. 2 is a transverse sectional view along the line 22 of Fig. 1.

Referring to these drawings in detail, in which similar referencecharacters corre spond with similar parts throughout the several views,and in which the boiler is indicated at A,-

The invention consists in the generalconstruction and combination inwhich a boiler connection 3 is formed with an internally threadedchamber 4 and a passage or port 5 through which water flows from theboiler. A valve body 6 is formed with an externally threaded portion 7by means of which it is secured in the chamber 4;, and the el'e-. ment 7co-acts with the chamber 4: to form avalve housing in which the closingelement or head 8 of a valve 9 is movable to opening and closingrelation with a valveseat 10 formed in the end of the element 7. Thevalve body 6 is also formed with a valve-seat 11, an outlet or drainpipe 12, a valve-bearing 13, and a packing seat 14:. A nut 15 holds thepacking in the seat 14: and is provided with internal threads 16 whichengage with external threads 17 of a that the stem portion of the valve9 is slabbed or cut away at three sides, as indicated at 22, so thatonly three edges 23 are in contact with the inner surface of the bore orhollow which connects the main valveseat 11 with the supplementalvalve-seat 10. It will be seen that the cut-away portions 22 extend intoa longitudinal bore 24in the valve 18 which terminates at the abutment20, the remaining portion of the valve 9 being cylindrical and having asmooth and easy-working fit in the cylindrical seat 24.

It will be seen, therefore, that when the main valve 18 is in itsclosing position, the supplemental valve is open to its fullest extent,being held open by means of the shoulder or abutment 20 which resiststhe tendency of the water and steam pressure to close the supplementalvalve. However, when the valve 18 is moved away from the valve seat 11,beyond a predetermined extent, or when the cap 15 is removed, thesupplemental valve is immediately closed by the water and steampressure, so that the water and steam cannot escape, and the main valve11 may be reground, or the valve body repacked, without danger to theoperator.

Although we have described this embodiment of our invention veryspecifically, it is not intended to limit the same to these exactdetails of construction and arrangement, but appropriate changes may bemade without departing from the inventive ide as described and claimed.

lVhat we claim as our invention is:

A gage cock comprising a boiler connection having an internally threadedchamber therein, a one-piece valve body including an externally threadedinner end and an externally threaded outer end, said inner end I beingfitted in said chamber and combining a supplemental valve seat and apassage, this passage connecting the main valve seat with thesupplemental valve seat, said valve body also including a water outletand a valve bearing in communication with said main valve seat, a mainvalve in said valve bearing, this main valvebeing tubular and Ycylindrical from itsinner end to a portion having screw threadedengagement with said nut and thereby being longitudinally movable to andfrom said main valve seat, and a one-piece supplemental valve includinga head and a stem, said stem being straight and having all its parts ofsubstantially equal lateral extent, this stem'extending through saidpassage and through the Vhollow of said main valve and normally abuttingagainst said abutment so that the latter normally holds saidsupplemental valve out of the supplemental valve-seat, but permits thesupplemental valve to close when said main valve is opened apredetermined 343 extent, said valve stem being longitudinally slidablein the tubular portion of said main valve to permit the latter to movelongitudinally from its closing position after the said supplementalvalve has closed and ceased to -1- move. 7

In testimony whereoi we have hereunto set our hands.

EDVVAKD J. SHEARER.

MARSHALL M. O'WENSQ V 7

